Steam and hot-water boiler.



R; W m m w T 7 m N N am NW v L NW h m z M: 23w. STEAM AND HOT WATER 30mm.

APPLIOATIOH Minn 13110.3(), 1897.

NEEIEE PATENTED APR; 3, 1906.

M. DEAN. STEAM AND HOT WATER BOILEP APPLICATION FILED DEC. 30, 1897.

4 SHEETSSHEET 2.

I Cl

m wig w a IE 5 v u 1 c z A F W s n} m H +3 m Huh \M [.Ilx K H K f A 4/; H .H ,4 H Ce, 0 HH A A ,3 Hz H H H [NV J A F F. 02 2 w i VA- 4 SHEETS- SHEET 3.

IIIIII/ Ilia-l "HI PATENTED APR. 3, 1905.

M. DEAN.

AIPILIOATION FILED DEC. 30, 1897.-

smAM AND HOT WATER BOILER.

No; 816,567. PATENTBD APR. 3, 1906.

M. DEAN. STEAM AND HOT WATER BOILER.

APPLICATION FILED DEC. 30, 1397.

4 SHEETSSHEET 4.

STATS ran'ng'r rrroni.

' MARK DEAN, OF BOSTON MASSAGHUS ETTS. ASSIGNOR TO THE HERENDEEN MANUFACTURING COMPANY, OF GENEVA, NEW YORK.

STEAM AND HOT=WATER BOILER.

Specification of Letters Patent.

Eatented April 3, 1906.

Application filed December 30, 3,897- Serial No. 664,600.

To all whom it may concern.-

Be it known that 1, MARK DEAN, a citizen of the United States, residin at Boston, in the county of Suiiolk and tate of Massachusetts, have invented certain new and useful Improvements in Steam and Hot-Water Boilers, of which the following is a specification.

This invention relates to steam and hotwater boilers for heating apartments and buildings, and it relates more particularly,

first, to a novel construction whereby the heat is diiiused and deflected by non-inflammable removable bars vertically suspended in the smoke or flame passage in opposite sides of the boiler, such bars, in connection with the eculia'rly constructed adjacent parts of the -oiler, serving to take the flames and prod-. nets of combustion from o posite sides of'the firepot between verticai waterways, split them into vertical sheets of flame, cause such sheets of flame to impinge against vertical waterways at substantially right angles thereto, from which they are deflected and move horizontallyto the outlet or smoke flue; second, to improved means whereby any desired number of the series of grates may be shaken orcleared of ashes, so as to confine the live fire to as smalla portion of the entire grate-surface as may be" desired, the shaking of all the grates or of any number of them being done by a single operation; third, to an improved construction whereby the shaker may be detached from the grates without the employment of any connecting mechanism in the ash-pit, all the mechanism for the purpose being outside the ash-pit and above the level of the grate; fourth, to an improved combination and arrangement of parts in the construction of the dampers whereby the draft-damper and check-damper may be more exactly, eihciently, and sim ly regulated and operated and provision mace for carrying off the dust and rising ashes into and up thefiue when the grate has been shaken, and to other novel constructions and arrangements of parts whereby the boiler and its parts are rendered more durable, its efficiency enhanced, and the proportion of heat obtained is increased, all substantially as fully described below and illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of my mproved boiler. Fig. 2 is a front elevation of-,.the

same. Fig. 3 is a longitudinal vertical section. Fig. 4 is a horizontal section taken on line 4, Fig. 3, a small portion being represented as having been broken out. Fig. 5 is a vertical section taken on line 5, Fig. 4. Fig. 6 is an elevation of a portion of the grate mechanism. Fig. 7 is 'a horizontal section of the same. Fig. 8 is a part vertical section and part elevation of the same. Fig. 9 is a crosssection taken on line 9, Fig. 8; Fig. 10 is a cross-section taken on line 10, Fig. 8. Fig. 1 1 is a rear elevation of the boiler. Figs.

12 and 13 are enlarged vertical sections of the I smoke-flue and dampers with the latter in different positions.

Si "lar letters of sponding parts.

A. represents theiront wall of the boiler or heater, and A the frontwall of the ashpit, said walls being providedwith the ordinary doors a, a, and a. Y Y

A represents the side walls of the ash-pit,

reference indicate correprovided with suitable doors a, and A is the rear wall of the ash-pit, provided with the passage 1), opening into the rear fine or smokeflue B, which is described below.

0 represents a series of rotative grates.

The front wall A is also the front wall of a water-space formed by the dome D, which extends down into the water-legs D on opposite sides of the door a, such water-legs having their inner walls D in shape to conform to the shape of the rate, as shown in Fig. 4, and being connected near their lower ends by the horizontal waterway D. (See Fig. 3.) At the rear end of the boiler is a dome E, whose rear wall A constitutes the rear wall of the boiler, such dome being provided with water-legs E, which extend inward to the central horizontal smoke-passagef, which opens into the smoke-flue B. Below this passage f the water-legs E are connected by a waterway E. Between the domes D and E is a series of domes F, from each of which two pairs of parallel vertical water-legs extend, one pair on each side of the fire-pot. Each outer water-leg F is connected at its lower ends of the grates 0.

' legs F are so formed as to provide vertical passages 9 between them, which enlarge at their upper ends into the flame-passages g.

' The inner water-legs F of the dome Fnext the rear dome E are extended, as shown in Fig. 4, so as to provide a greater heatingsurface and also project over the fire-pot by means of the peculiar form shown at F, and their lower connection F, 'Fi 3, is larger than those of the other wateregs, so as to present a large heating-surface at the rear'of the fire-pot. These domes are formed to open into'each other and connect, as

.shown in Fig. 3, by means of the passages D Fig. 5. Each dome, except the front one, has its front side around said'passage formed into the circular male boss cl, and each dome, except the rear one, has its rear side formed. into the angle-shaped female boss (1. Between the extreme outer end of each boss d and the rear side of the angle portion of each boss (1 is a gasket or washer d of pliable ma terial. By this means the domes are formed with joint-s consisting practically of parallel and fitting metallic plates, while rust is prevented from forming on the interior of the ring-sha ed or circular joints and such joints renderec perfectly tight by means of the gaskets, which are in contact with the domes only at the points where the extreme ends of the bosses d abut against the inner ends of the bosses d. The sections or domes are. held together by means of horizontal rods g, which are inclosed in a series of cast pipes or tubes 9, one set of such pipes being inclosed within each section or dome and the rods g extending through all the sections, which are held together by means of nuts placed on the outer ends of said bolts or rods. By this means 'said rods are prevented from rust. The opening h, Figs. 2, 3, and 11, is that through which the water or steam is distributed throughout the building or apartment to be heated. As will readily be seen, the water and steam circulate freely through these water-legs, connecting-Waterways, and domes.

Suspended from the under sides or walls of the domes F centrally within the passages H and between the upright walls c 1d 2 are the non-inflammable removable bars or deflectors K, preferably of diamond shape in cross-section. lVhen'the flames and products of combustion leave the fire-pot, they sweep outwardly horizontally throu h the passages g 9 between the Water-legs into the horizontal passages H. The first movement of these dairies as they enter the as sages H is to impinge at substantially right angles against theinner walls (3 of the outer eraser water-legs F. Thence they are drawn rear-'- ward andare split and deflected by the-defiectors K, so that they drive against both smoke-passage f into the smoke-flue B. Thus two opposite sheets of vertical flame pass horizontally through the passages H, tl

sheets of flame being always vertical and their movement bein always horizontal. It

is evident that all of t e following walls via',

i D, e, e, e, e, F the wall of the smoke passage D, those of the smoke assa es F and E, and those of the wateregs "-are brought into direct contact with the flames and products of combustion. It will be noticedthat the deflectors K are of varying sizes, the largest being near the front ends of the assageH and the smallest near the rear en. s. Inasmuch as the flames and prod- ,ucts of "combustion entering the passa es H throu h the passages g g" must necessarily accumu ate or be greater in bulk toward the rear ends of the passages, it is deemed advisable that the deflectors should occupy less space and afford less resistance as the flames reach the rear portions of said passages. Moreover, the deflectors not only serve to diffuse the heat, but may operate to regulate the size of the smoke-opening, and thereby overcome excessive draft.

The grates c at one end are formed with the squared extensions or bars 0, Figs. 5, 8, and

1 0 which extend into correspondingly-shaped sockets J, having their bearings in the base A, as shown, and formed at their outer ends with the cranks J, whose free ends J are bent diagonally, as shown in Figs. 6 and 7,

and provided with the squared sockets J The sockets or tubular connections J are rovided with lugs I, which when said connectibns are inserted are 51" ped through the correspondingly-shaped s ots I" in the side wall A, Fig. 6, and when the cranks J are swung up said lu s lie in the slots 1, Fig. 9, behind the 5 side pate A. with the grates without the use of bolts or cotters under the grates, thereby preven mg the annoyance which arises from such devices rusting in place and rendering difficult the removal of the shaker. These cranks or operating-arms J are provided on alternate sides with openings into which pins or bolts Z can be placed, said bolts being adapted to extend through corresponding openings in the downward projections L from the two horizontal portions L and L of a double connectingbar-"i. a, the first, third and fifth ates are connected by the pins Z to the bar L and the second and fourth grates by the ins Z to the bar L. It is evident, therefore, t at if an ordinary shaker is applied to the socket J in one of the cranks or arms J which is 0011-,

Thus connection is made nected with the bar L all the grates whichr3 are connected with that bar will be simul taneously shaken, while if the shaker be applied to the socket in a crank or arm which is connected with the bar L the grates connected with the last-named bar will be shaken. Thus one-half of the grates are shaken by one bar and the other half by the other bar. It is evident that by removing one or more of the bolts Z as many or as few of the grates may be shaken as desired, for by providing openings for the bolts Z in all the cranks or arms J such cranks or arms may be connected with the downward extensions L on either of the bars L L. The upper surfaces of these bars are provided with suitable notches m, and a support a is rigidly secured at n to a bracket 71/, extending from the side or base A, the upper end of said support extending between the bars L L. Pivotally secured at n, Fig. 6, to said support are the locking-bars N N, Figs. 4, 6, and 7, whose outer ends are bent into the latches N N and whose rear ends are sufficiently long or heavy to hold the latches up if they are" swung back out of engagement with the notches m or allow them to-lie in said notches if they are swung down into such engagement.- Thus either or both of the bars LL may be locked, and hence the grates with which such locked bar is connected be rendered immovable. In Figs. 4, 6, and 7 one of the bars is represented as locked and the other as free to be operated.- By means of vided with the horizontal draft-openings B,

as indicated in Figs. 3, 11, 12, and 13, and with the vertical slideway 13, Within which is the damper P, provided with the draft-open ings P and checkdraft openings P. This damper slides vertically and is operated automatically by the damper-regulatorR, Figs. 3 and 11, consisting of a diaphragm and case operated automatically by steam through the means of the pipe E, Figs. 4 and 11,in the usual manner. A rotative damperS is hung centrally within the smoke-flue B and operated by the handle S, which is fixed to the shaft of the damper outside of the fine at right angles with said damper, 'Figs. 1, 12,;

and 13. The normal position of the parts when the sliding-damper P is down is indi-'.

1 the openings B in the rear wall of the smokefiue below the damperS. When the draft is fore shaking the grates the arm S is swung up into the position indicated in Fig. 13, so as to leave the flue open to the passage of the rising ashes and dust. This causes the bandle S to engage the projecting arm T and lift the damper P just enough to close the open ings B below the damper S, but notenough to open the openings B above the damper S. Thus'the rear wall of the smoke-flue B is closed and the dust and ashes drawn up through the fiue without leaking or sifting out through the sliding damper while the grates are being shaken. When the arm S of the damper is swung up, it is held in such position by one of the teeth U, Figs. 1 and 4. In order that the deflectors K may be removed, the passages H are extended through the front wall A, accessbeing had by means ofdoorsV. i

The passage W, FigJS, is utilized as a direct draft when building a fire.

It will be observed'by reference to Figs. 3 and 4 that the generator comprises upright sections arranged one in advance of the other, a number of the sections being each formed with substantially .upright chambers F F at opposite sides of the combustion-chamber, said upright chambers being. connected at loo their upper ends and provided with flues II 1 0 its front and rear faces and alined with the before-mentioned fines, fire-passages communicatinglaterally with the inner sides of its flues, and a water containing chamber arranged at the rear of the fire-passages for forming the rear wall of the combustion chamber.

Having thus fully described my invention, what I claim, and desire tosecurc by Letters Patent, is-

1. In a steam or hot-Water boiler, in combination with the vertical water-passages F set on opposite sides of the fire-pot and separated by vertical flame-spaces; the vertical water-passages F. provided with the straight horizontal sidesc facing inward toward the fire-potand-at right angles with said flamepassag'es, the horizontal flame-passages H10- cated between said passages F and F, and

erase-'2 horizontal passages connecting the passages H with the smoke-flue, whereby the flames are drawn in vertical sheets horizontally outward from the Opposite sides of the fire-pot or co1nbustion-chamber between the waterpassages F and impinge horlzontally against I the walls c of the water-passages F at right angles to said walls and are thence drawn horizontally through the passages H to the- ,smoke-flue, substantially as described.

2. In a steam or hot-water boiler, in comenteringsaid passage are split and deflected agamst the walls of the water-passages ad joining the passage H, substantially as set forth;

3. In a steam or-hot-water boiler, in combination with two rows of vertical water-passages set between the fire-pot and the side of the boiler whereby a horizontal passage H is formed between said rows the non-inflammable heat-deflecting bars K thicker at their centers than at their front edges and suspended within said passage H, whereby the flames entering said passage are split and defiected against the walls of the water-passages adjoining'the passage fL substantially as described.

4. In a steam or-hot-water boiler, in combination with two rows of vertical water-passages set between the fire-pot and the side of the boiler whereby a horizontal passage H is formed between said rows; the series of noninflammable heat-deflecting bars varying in thickness and with the thickest bar nearest the front wall of the boiler and said bars growing gradually thinner toward the rear wall thereof, said bars being suspended within said passage H, whereby the flames entering said passage are split and deflected against the walls of the water-passages adjoining the passage H, substantially as set forth.

5. In a steam or hot-water boiler, in combination, the domes D, F, provided with the water passages or legs D, F F extending down on opposite sides of the fire-pot as described, each dome F being provided with four water-legs F, F two of which are on each side of the fire-pot whereby horizontal passages H are formed between each series of pairs of water-legs, the rearmost of the domes if being formed with the watenlegs F extending at their inner ends forward over the gate at and the dome E provided th the broad inwardly-extending waterpc forth.

E, all substantially as and for the pur- I 6. A generator comprising upright sections arranged one in advance of the other, a number of the sections being each formed with substantially upright chambers at opposite sides of the combustion-chamber, connected at their upper ends, said chambers being provided with fiues extending through their front and" rear faces, and fire-passages communicating laterally with the fiues for conducting the products of combustion thereto.

7. A generator comprising upri ht sections arranged one in advance of the ot er, a number of the sections being each formed with substantially upright chambers at opposite sides of the combustion-chamber, connected at their upper-ends, said chambers being provided with elongated upright flues extending through their front and rear faces at opposite sides of the combustionchamber, and having their front and rear faces formed with firepassages communicating laterally with the inner sides of the flues through the uprightsides of the combustion-chamber for conducting the products of combustion to said fiues.

, 8. A generator comprising upright sections arranged one in advance of the other, a num ber of the sections being each formed with substantially upright chambers at opposite sides of the combustion-chamber, connected at their upper ends, said chambers being provided with flues extending through their front and rear faces, ando'ne of the sections being provided with flues extending throu h its front and rear faces and alined with t e former fiues, fire passages communicating laterally with the inner sides of the fiues, and a water-containing chamber arranged at the rear of the fire-passages for forming the rear wall of the combustion-chamber.

Q. A generator comprising upright sections arranged one in advance of the other, a number of the sections being each formedwith I substantially upright chambers at opposite at their upper ends, said chambers being rovided with flues extending through t eir front and rear faces, and fire-passages communicating laterally with the fiues for conducting the products of combustion thereto, and one of the sectionsbeing provided with fines extending through its front and rear faces and alined with the former ilues, firehssages communicating laterally with the nner sides of the flues and a water-contaming chamber arranged at the rear of the fire-- passages for forming the rear wall of the combustion-chamben MARK DEAN.

Witi'i'esses: 4

' HENRY W. WILLIAMS,

N. Bonner.

I05 sides of the combustiomchamber, connected 

